This section is from the book "Materia Medica And Therapeutics Inorganic Substances", by Charles D. F. Phillips. Also available from Amazon: Materia medica and therapeutics.
Bromide of potassium, applied in fine powder to indolent ulcerations and morbid growths with raw surface, is said to act well and painlessly as an alterative or caustic. An epithelioma has been successfully treated in this manner (Perrant: Medical Times, ii., 1876, p. 368).
Mixed with simple ointment (1 part in 5), or with glycerin, it forms a sedative, somewhat astringent application for painful and sloughing ulcers, also for painful conditions of mucous membrane, haemorrhoids, and anal fissure, and for chronic eczema and acne.
A lotion containing 1 part to 50 of water is said to restrain hemorrhage (Lancet, ii., 1876, p. 474).